Rotary fan



(No Model.)

0. BARNES.

ROTARY FAN.

No. 339,887. Patented Apr. 13. 1886.

N. PETERS Fhulo-Ldhogmphen Washington D: C.

UNITED STATES PATENT OFFICE.

CHARLES BARNES, OF DAYTON, KENTUCKY.

ROTARY FAN.

SPECIFICATIQI forming part of Letters Patent NO. 339,837, dated April 13, 1886.

Application tiled June 22, 1885.

To all whom it may concern.-

Be it known that I, CHARLES BARNES, a citizen of the United States, and a resident of Dayton, in the county of Campbell and State of Kentucky, have invented certain new and useful Improvements in Rotary Fans, of which the following is a specification.

My invention relates to rotary fans for exhaust and blowing purposes, and especially to that class used in dining-rooms and similar situations for causing a free circulation of air in warm weather and preventing the annoyance from flies. Fans of this classas now con structed are secured to radial arms projecting from a revolving shaft mounted in hangers depending from the ceiling, the shaft being placed longitudinally with the room above the tables. I have observed in places where these fans are used that the air is impelled i downward with considerable force upon one side of the room, while the opposite side is comparatively unaffected.

The primary object of my invention is to overcome this defect and insure an equal distribution of the air from the fan upon each side. A further object isa cheap, light fanblade that can be readily applied.

\Vith these objects in view my invention consists in the arrangement and combination of devices hereinafter described, and particularly pointed out in the claim.

In the accompanying drawings, forming part of the specification, in which like parts are represented by similar referenceletters wherever they occur, Figure l is a side elevation of a portion of the revolving shaft having one of my improved fans mounted upon it.

2 is a vertical transverseset-tion taken through 5 line a: x of Fig. 1, looking to the left.

A represents the shaft, upon which are secured at a suitable distance apart the hubs B,

s i l Nt 1r.9,4fi7. (No model.)

flexible material stretched around the opposite V arms 0. It is ornamented or covered with some ornamental paper.

The hubs are adjustable along the shaft by means ot'the set-screwsb,so that they with their arms may be placed any distance apart to provide for the length of the vane, as de sired.

I intend to make the hub and arms 0 separately, so that they will occupy but little space when for shipment, and no skill is required to fit the fan when the hubs and arms are fornished. It is evident that the arms 0 may also be used in the position they occupy on the flanges for a vane or fan like those incommon use; but the form shown is preferable.

I am aware it is not new to secure fan-blades to the sides of asquare or polygonal shaft, and hence do not claim a fan so constructed.

\Vhatl claim is- In a rotary fan of the character described, the combination, substantially as specified, of the shaft A, hubs B b, secured upon the shaft at suitable distances apart, and the arms 0, secured tangentially on the flanges of said hubs,with the webbing D between the opposite arms.

CHAS. BARNES.

Attest:

L. H. PUMMILL, GEo. J. MURRAY. 

